MIC3291-18YML-TR

LED Driver IC Overview

The MIC3291-18YML-TR is a 1.2MHz PWM boost regulator IC optimized for constant current White LED (WLED) driver applications. It features an internal Schottky diode and supports single-wire linear brightness control. The device operates with a minimum supply voltage of 2.5V and delivers up to 1.2A output current. It is housed in an 8-pin VFDFN package with exposed pad or 8 MLF surface-mount configuration, designed for compact power management solutions.

LED Driver IC Feature Summary

• Integrated 1.2MHz PWM boost topology with internal Schottky diode
• Optimized for constant current WLED driver applications
• Supports single-wire linear brightness control interface

LED Driver IC Applications

• White LED backlighting systems
• Portable electronic device illumination
• Compact power management modules

LED Driver IC Procurement Notes

Verify component status as the part may be listed as obsolete or discontinued by major distributors. Confirm availability through authorized channels only. Ensure the specific suffix matches required packaging options such as tape and reel. Check regional shipping restrictions prior to ordering.

LED Driver IC Selection Notes

Select this component for designs requiring high-frequency boost regulation with integrated switching elements. Consider the 8-pin package constraints for PCB layout. Verify input voltage ranges against system requirements. Evaluate thermal performance given the exposed pad design.

LED Driver IC Part Context

This part belongs to the MIC3291 series of LED drivers manufactured by Microchip Technology. It represents a specialized solution for driving white LEDs efficiently. The series focuses on integrating power switches and control logic into a small footprint.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements.